True, but even when Giles or anyone like him does his best effort with the pump, the rest of the engine (inlet/turbo/exhaust/COOLING) also needs to be able to support the desired power output and the pump must to be timed correctly to the engine. Giles would be the first to say this. A Giles pump or other "super pump" built with the fueling and advance curve to theoretically support 150hp or any other target won't come anywhere close if it's installed with the wrong static timing on an engine that is not moving air at the necessary volume, pressure, and temperature to burn the extra fuel completely and efficiently.
It's obvious from the symptoms of the OP's original issue (heavy smoke, high EGT, low boost pressure) that there was never any lack of fuel delivery; to the contrary there was clearly way too much fuel and not enough oxygen. The IP itself almost definitely was not the reason for the trouble in the first place and any effort to add even more fuel will only make things worse. The stock 10mm pump elements are more than enough to reach the particular power goal he laid out.
Nevertheless, even when faced with textbook overfueling signs the OP is still pursuing MORE fuel delivery capacity, so there's a breakdown of cause-and-effect comprehension going on. Thus I'm trying, gently (I hope!), to help him see that he needs to change his focus away from buying more goodies for the engine and instead towards ensuring the parts he already has are installed and calibrated correctly, with the required tools and methods, and sized appropriately to each other. That's what he will need to do if he wants all these parts to actually work. Fine-tuning and troubleshooting is the next step, and there's no part number that can be purchased to circumvent that homework.
Sorry if this comes off as harsh, but if he wants this truck to run correctly and doesn't want to waste a ton of money, a significant change in his thinking is needed and I'm trying to explain that in the most direct way I can. Plus the rest of us here trying to contribute advice will be wasting our own time answering questions about parts upgrades for an engine that, as far as we know, nobody has even attempted to set the cam and pump timing on yet.
